Question

The following data gives the scores of 13 students in a Biostatistics exam. 75 80 28 70 95 82 75 64 61 90 81 65 91 a) Find the following statistical measures 1. Mean 2. Median 3. Mode 4. Range 5. 34th percentile 6. Interquartile Range 7. Variance 8. Standard deviation PRINCIPLES OF STATISTICS Assignment (1) Due Date: 15/7/2020 9. Coefficient of variation. b) (Without Calculations) If the instructor decide to add up 5 marks for every student, what are the values of the statistical measures mentioned in part (a). c) Construct the Boxplot of students' scores, and identify any possible outliers.

Answer #1

The following data gives the scores of 13 students in a
Biostatistics exam. 75 80 28 70 95 82 75 64 61 90 81 65 91
a) Find the following statistical measures
1. Mean
2. Median
3. Mode
4. Range
5. 34th percentile
6. Interquartile Range
7. Variance
8. Standard deviation
9. Coefficient of variation.
b) (Without Calculations) If the instructor decide to add up 5
marks for every student, what are the values of the statistical
measures mentioned in...

The following data set is a sample of student's scores on a
statistics exam: 89 33 20 87 61 64 60 66 47 27 87 Find the
following measures using the data above. a) Mean b) Median c) Mode
d) Range e) Variance f) Standard Deviation

suppose a data set consisting of exam scores has a lower
quartile Q1=60, a median m=75 and an upper quartile of Q3=85. the
scores on the exam range from 18 to 100. Without having the actual
scores available to you, which one of the following statements is
true?
a) the data set contains no suspected outliers
b) the data set contains suspected outliers only on its lower
end
c) the data set contains suspected outliers only on its upper
end...

Suppose a professor gives an exam to a class of 40
students and the scores are as follows. (Type the
data set in StatCrunch.)
35
44
46
47
47
48
49
51
53
54
55
55
57
57
57
58
59
59
59
59
60
60
60
60
60
62
62
62
64
68
69
70
72
73
73
75
75
77
82
88
a. Find each of the
following:
Mean:
Median:
Standard deviation:
Z-score for a student who...

. The following data represent the final exam scores of 18 male
students and 18
female students.
Male: 68, 68, 72, 73, 65, 74, 73, 72, 68, 65, 73, 66, 71, 68,
74, 66, 71, 65
Female: 59, 75, 70, 56, 66, 75, 68, 75, 62, 60, 73, 61, 75, 74,
58, 60, 73, 58
Is there any significant difference between the average exam
scores of male and
female students? Explain your answer.

Using the accompanying Student Grades data, construct a scatter
chart for midterm versus final exam grades and add a linear
trendline. What is the model? If a student scores 7878 on the
midterm, what would you predict her grade on the final exam to
be?
Student
Midterm
Final Exam
1
75
64
2
85
91
3
80
68
4
88
83
5
76
60
6
67
80
7
78
74
8
95
94
9
67
61
10
93
87
11...

A business statistics professor gives 100-point exams to two
different sections of business statistics. The scores in one
section, Section 001, of the class were 40, 50, 61, 63, 67, 74, 74,
76, 76, 78, 78, 80, 82, 86, 87, 87, 87, 88, 90, 90, 91, 92, 92, 93.
The other class, Section 002, had scores of 67, 67, 68, 75, 75, 76,
79, 79, 80, 80, 80, 83, 86, 87, 87, 88, 89, 89, 90, 90, 90,
91.
Based...

The following data represents the exam scores of students in
Econ 220 VV22, which is one of several sections of Econ 220 in a
college. You can take this as a sample.
Student
Score
1
82
2
70
3
50
4
60
5
75
6
65
7
55
8
80
9
85
10
90
11
95
12
94
13
35
14
40
15
65
16
95
17
91
18
55
19
65
20
76
21
86
22
96...

Using the given data set to answer the following questions80 60
100 40 40 50 80 90 100 60 10 80 45 60 30 80 30 90 100 60 50 75
a. find Mean, Median, Mode, Standard Deviation, and
Variance:
b. find First quartile and Third Quartile
c. Find the number which represents the 33th percentile.
d. find the percentile of 45
e. find the range and midrange
f. construct a box-plot
g. Construct a frequency distribution with 5 classes....

Below represent scores on an exam, each entry one score for one
student
40
99
59
98
63
63
64
65
67
35
67
67
68
70
71
71
71
46
72
72
60
73
74
74
74
75
97
75
62
76
76
76
76
76
77
57
77
98
77
63
78
78
78
79
79
80
80
80
80
80
81
81
92
81
93
82
82
83
83
83
83
83
83
83
84
84
84...

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